GENERAL DESCRIPTION
The AD7476A/AD7477A/AD7478A are 12-bit, 10-bit, and 8-bit high speed, low power, successive-approximation ADCs, respectively. The parts operate from a single 2.35 V to 5.25 V power supply and feature throughput rates up to 1 MSPS. The parts contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 13 MHz.

FEATURES
  Fast Throughput Rate: 1 MSPS
  Specified for VDD of 2.35 V to 5.25 V
  Low Power:
     3.6 mW Typ at 1 MSPS with 3 V Supplies
     12.5 mW Typ at 1 MSPS with 5 V Supplies
  Wide Input Bandwidth:
     71 dB SNR at 100 kHz Input Frequency
  Flexible Power/Serial Clock Speed Management
  No Pipeline Delays
  High Speed Serial Interface
     SPI®/QSPI™/MICROWIRE™/DSP Compatible
  Standby Mode: 1 μA Max
  6-Lead SC70 Package
  8-Lead MSOP Package

APPLICATIONS
  Battery-Powered Systems
     Personal Digital Assistants
     Medical Instruments
     Mobile Communications
  Instrumentation and Control Systems
  Data Acquisition Systems
  High Speed Modems
  Optical Sensors